High-performance lightweight composite mortar

Abstract

The invention relates to the field of building materials, in particular to high-performance lightweight composite mortar, which is characterized by comprising the following substances in part by weight: 250 to 350 parts of cement, 120 to 200 parts of reinforcing material, 160 to 200 parts of composite heat insulation aggregate, 0.5 to 2.0 parts of short fibers, 0.2 to 1.5 parts of water repellent, 0.5 to 2.0 parts of thickening agent, 5 to 10 parts of re-dispersible powder and 300 to 400 parts of furnace slag sand. Compared with the prior art, the high-performance lightweight composite mortar can effectively save the use of materials such as cement and the like, meanwhile has good performance of water holding, cracking resistance, water prevention, fire prevention and the like and good adhesive force and flow resistance, avoids hollowing and cracking, meets various performance requirements of a rendering layer, and has the remarkable advantages of energy conservation, environmental protection, simple construction, high strength, low cost, good product quality and the like.

Description

Technical field: [0001] The invention relates to the field of building materials, in particular to a high-performance lightweight composite mortar. Background technique: [0002] As we all know, air-entrained concrete, as a new type of wall material, has been widely used in recent years. However, while vigorously promoting the application of new wall materials and external wall insulation technology, there are more and more wall quality problems. Many engineering buildings have problems such as wall cracking, hollowing, and leakage. The main reason is that Use ordinary cement mortar for masonry and plastering of air-entrained concrete. For this reason, special masonry and plastering mortars for aerated concrete have been developed in the industry, and the Ministry of Construction has issued the industry standard JC890-2001 <Masonry Mortar and Plastering Mortar for Autoclaved Aerated Concrete> to prevent the occurrence of the above problems. [0003] However, the prob...

AI Technical Summary

Problems solved by technology

This method undoubtedly makes the construction simpler and has better fireproof performance. However, due to the high production requirements, low output and high cost of the aerated blocks B03, B04, and B05, many areas cannot produce this product. Therefore, aerated concrete is used. It is difficult to implement its own thermal insulation to meet the thermal requirements in areas without low-melting-weight aerated concrete products

In addition, the current construction of autoclaved aerated concrete walls requires two mortar materials, masonry and plaster, which bring inconvenience and trouble to the storage and use of materials on the construction site.